Source Span
Definition
The document, page, and character range that justifies an extracted field. If the span is missing, the field is a gap. If two spans disagree, the field is a conflict. Averaging them invents a third number neither document contains.
Practical Example
ACME Construction slip TIV USD 42,000,000 from Slip.pdf page 1 versus SOV total USD 47,100,000 from SOV.xlsx.
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Related Terms
For extracted fields: the document, page, and character span a value came from. A field without provenance is a gap.
The list of fields that have no source span after extraction. A gap is missing evidence, not a low-confidence guess. The chase list is the actionable form of the gap report on a facultative pack.
Extraction that stores each field with the document, page, and character span it came from. Missing spans are gaps. Conflicting spans stay visible instead of being averaged.